Yusril Ihzayahya, Ardi Bastian. Analysis of Length Work and Visibility on Online Learning Toward Teachers Fatigue at Junior High School 2 Durenan District Trenggalek. IJNER [Internet]. 2021 Jan. 18 [cited 2025 Sep. 12];4(1):1-7. Available from: https://ijner.org/index.php/IJNER/article/view/168